ADVANCED HONORS CHEMISTRY - CHAPTER 12
NAME:
STOICHIOMETRY
DATE:
STOICHIOMETRY PROBLEMS WORKSHEET - V12
PAGE:
Some Problems Based on Work Produced By Former Students.
1. Elizabeth is making 80 chocolate chip cookies for Mr. Harrison’s 100th birthday. She uses 40 eggs, 5.0 liters
of milk, and 200. grams of flour. What mass, in grams, of flour would she need to make Mr. Harrison 100
chocolate chip cookies? What volume, in liters, of milk?
2. Benzene (C6H6), an aromatic organic solvent, has serious health risks associated with its use. One way of
disposing of it is through combustion. How many moles of oxygen gas would be consumed when 10.0
moles of benzene are burned?
3. The predominant cause of upset stomachs for parents is their teenage children. These parents then consume
various antacids that contain aluminum hydroxide, a base that neutralizes the excess hydrochloric acid
produced in the stomachs of those unfortunate parents. If one parent produces 5.00 moles of excess
hydrochloric acid, how many moles of aluminum hydroxide would he or she have to consume to neutralize
the acid?
4. What volume, in liters, of carbon dioxide would be produced when 6.00 liters of oxygen gas react with an
excess of methane? Assume the gas volume is measured at STP.
5. In the Haber process, nitrogen gas is combined with hydrogen gas to form ammonia. What volume, in L, of
ammonia would be produced if 7.25 liters of hydrogen gas are combined with an excess of nitrogen gas?
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6. How many liters of hydrogen gas would be needed to react with an excess of chlorine gas to produce 40.0 g
of hydrogen chloride gas?
7. Cellular respiration is the body’s equivalent of a combustion reaction. In cellular respiration, glucose
(C6H12O6), a sugar found in the human body, is the hydrocarbon that combines with oxygen gas. What
mass of glucose is required to produce 2.41 L of carbon dioxide gas at STP?
8. Ammonia combines with oxygen gas to yield nitrogen monoxide and water. How many grams of ammonia
are needed to consume all 120. g oxygen gas?
9. Calculate the volume of carbon dioxide produced when 250. g of pentane reacts with 750. L oxygen gas.
Assume all volumes are measured at STP.
10. How many grams of water are produced when 200. grams of hydrogen gas are combined with 400. grams of
oxygen gas?
11. Ammonia and oxygen gas can be combined to produce nitrogen gas and steam. If 75.0 L of ammonia are
combined with 75.0 grams of oxygen gas, would mass, in grams, of nitrogen gas can be produced?
12. In lab you and your partner(s) mix 2.80 grams of aluminum nitrate with an excess of sodium hydroxide. In
the lab you produce 0.966 grams of aluminum hydroxide. What was your percent yield?
2 - AHC - Chapter 12 - Stoichiometry Problems Worksheet - V12